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Orbicularis Oris

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61. High variability of facial muscle innervation by facial nerve branches: A prospective electrostimulation study. Full Text available with Trip Pro

division could lead to reactions in the midface (nasal and zygomatic muscles) as well as around the mouth (orbicularis oris and depressor anguli oris muscle function). Frontal and eye region were exclusively supplied by the temporofacial division. The region of the mouth and the neck was exclusively supplied by the cervicofacial division. Nose and zygomatic region were mainly supplied by the temporofacial division, but some patients had also nerve branches of the cervicofacial division functionally (...) increase to 2 mA with a frequency of 3 Hz. The electrostimulation and the facial and neck movements were video recorded simultaneously and evaluated independently by two investigators.A uniform functional allocation of specific peripheral FN branches to a specific mimic movement was not possible. Stimulation of the whole spectrum of branches of the temporofacial division could lead to eye closure (orbicularis oculi muscle function). Stimulation of the spectrum of nerve branches of the cervicofacial

2016 Laryngoscope

62. Selective stimulation of facial muscles with a penetrating electrode array in the feline model. Full Text available with Trip Pro

rehabilitation.Acute experiments in animals with normal facial function.The study included three anesthetized cats. Four facial muscles (levator auris longus, orbicularis oculi, nasalis, and orbicularis oris) were monitored with a standard electromyographic (EMG) facial nerve monitoring system with needle electrodes. The main trunk of the facial nerve was exposed, and a 16-channel penetrating electrode array was placed into the nerve. Electrical current pulses were delivered to each stimulating electrode

2016 Laryngoscope

63. Effect of expiratory muscle strength training on swallowing-related muscle strength in community-dwelling elderly individuals: a randomized controlled trial. (Abstract)

with a resistance-free sham device. Post-intervention, muscle strength of the bilateral buccinator and the orbicularis oris muscles (OOM) was measured using the Iowa Oral Performance Instrument. Surface electromyography was used to measure activation of the suprahyoid muscles (SM).After intervention, the strength of the buccinator and the OOM in the experimental group showed statistically significant improvement. There was also statistically significant activation of the SM. In the placebo group, the strength (...) of the orbicularis oris muscle alone improved. No statistically significant differences between groups were found for the strength of the buccinator and the OOM and the activation of the SM.EMST had a positive effect on swallowing-related muscle strength in elderly participants.© 2016 John Wiley & Sons A/S and The Gerodontology Association. Published by John Wiley & Sons Ltd.

2016 Gerodontology Controlled trial quality: uncertain

64. Clinical Features and Management of a Median Cleft Lip Full Text available with Trip Pro

of these cases underwent surgical correction; alveolar bone grafting was performed in a patient with a median alveolar cleft. The surgical technique included inverted-U excision of the upper lip and repair of the orbicularis oris muscle. The mean follow-up period was 20.4 months (range, 7.4-44.0 months).The study patients presented various anomalous features. Five patients received surgical correction, 4 with repair of the median cleft lip, and one with iliac bone grafting for median alveolar cleft

2016 Archives of plastic surgery

65. Vermilion Reconstruction with Genital Mucosa Full Text available with Trip Pro

of multiple vermilion and skin resections of the upper lip. At the last step, we had to resect even the whole vermilion mucosa, including parts of the oral mucosa of the vestibule, leaving a bare orbicularis oris muscle. To reconstruct the mucosal layer, we used a mucosal graft from the labia minora and placed it on the compromised lip and the former transpositional flaps for the reconstructed skin of the upper lip with very good functional and aesthetic results.

2016 Plastic and Reconstructive Surgery Global Open

66. Social variables exert selective pressures in the evolution and form of primate mimetic musculature Full Text available with Trip Pro

dominance styles and (2) comparative physiology of the orbicularis oris muscle among select ape species. This muscle is used in both facial displays/expressions and in vocalizations/human speech. We present qualitative observations of myosin fiber-type distribution in this muscle of siamang (Symphalangus syndactylus), chimpanzee (Pan troglodytes), and human to demonstrate the potential influence of visual and auditory communication on muscle physiology. In sum, ecomorphologists should be aware of social

2016 Journal of anatomy

67. Learning to Produce Syllabic Speech Sounds via Reward-Modulated Neural Plasticity Full Text available with Trip Pro

indicating that hearing, including hearing one's own vocalizations, is critical for canonical babbling development. Reward receipt increases the level of dopamine in the neural network. The neural network contains a reservoir with recurrent connections and two motor neuron groups, one agonist and one antagonist, which control the masseter and orbicularis oris muscles, promoting or inhibiting mouth closure. The model learns to increase the number of salient, syllabic sounds it produces by adjusting

2016 PloS one

68. Exploring Subclinical Phenotypic Features in Twin Pairs Discordant for Cleft Lip and Palate Full Text available with Trip Pro

Exploring Subclinical Phenotypic Features in Twin Pairs Discordant for Cleft Lip and Palate Monozygotic twins of an individual with an orofacial cleft have a significantly elevated risk for orofacial cleft compared with the general population, but still the concordance rate for orofacial cleft in monozygotic twins is about 40% to 50%. The goal of this study was to determine whether unaffected cotwins have an increased frequency of orbicularis oris muscle defects, a subclinical form of orofacial (...) cleft. The presence of such defects may reduce the overall rate of discordance.A total of 63 discordant monozygotic and dizygotic twin pairs, 262 unaffected nontwin siblings, and 543 controls with no history of orofacial clefts were assessed for orbicularis oris defects by high-resolution ultrasound. Frequencies were compared by the Fisher exact test.Unaffected cotwins from discordant monozygotic pairs had a higher frequency of defects (12.5%) than the other test groups (6.38% to 6.99

2016 The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

69. Intramuscular sinusoidal haemangioma with secondary Masson's phenomenon Full Text available with Trip Pro

Intramuscular sinusoidal haemangioma with secondary Masson's phenomenon Intramuscular haemangiomas (IMHs) are rare benign vascular neoplasms that account for approximately 0.8% of all haemangiomas. The histology of IMHs can reveal cavernous dilated spaces. We report an interesting case of haemangioma in the deep skeletal muscle of the right labial mucosa in a young man involving the orbicularis oris muscle which showed additional features of sinusoidal arrangement with a secondary Masson's

2016 BMJ case reports

70. Effect of Platelet Rich Plasma (PRP) on the Esthetic Outcome and Scar Formation of Unilateral Cleft Lip Repair

through orbicularis oris muscle by ultrasonography scar width [ Time Frame: 6months ] scar width at skin surface via photograph Secondary Outcome Measures : vancouver scar scale [ Time Frame: 6 months ] VSS has four parameters, including vascularity, pigmentation, thickness, and pliability giving a range of 0 to 13 in the total score with 0 representing normal skin Other Outcome Measures: Philtral ridge length symmetry index [ Time Frame: 6months ] Philtral ridge length was measured on the non-cleft

2016 Clinical Trials

71. The Underlying Mechanism of Preventing Facial Nerve Stimulation by Triphasic Pulse Stimulation in Cochlear Implant Users Assessed With Objective Measure. (Abstract)

orbicularis ori and oculi) were applied to quantitatively assess the effects on FNS. Triphasic and biphasic fitting maps were compared in four subjects with severe FNS. Based on the recordings, a model is presented which intends to explain the beneficial effects of triphasic pulse application.Triphasic stimulation provided by fitting of an OPUS 2 speech processor device. For three patients, EMG was successfully recorded depending on stimulation level up to uncomfortable and intolerable FNS stimulation

2016 Otology and Neurotology

72. Ethical Issues in Pediatric Face Transplantation: Should We Perform Face Transplantation in Children? (Abstract)

; however, children are not simply small adults.The authors searched for pediatric patients in need of restoration of fundamental functions of the face, such as orbicularis oris or oculi muscle closure by, first, selecting cases from a pediatric plastic surgery reference center and, second, analyzing the feasibility of face transplantation in those patients. The authors then identified the specific problems that they would encounter during a pediatric face transplant. The authors identified three

2016 Plastic and reconstructive surgery

73. Effect of Repetitive Transcranial Magnetic Stimulation on Patients With Dysarthria After Subacute Stroke. Full Text available with Trip Pro

of the orbicularis oris on the non-affected side. We performed rTMS at a low frequency (1 Hz), 1,500 stimulations/day, 5 days a week for 2 weeks on the hotspots. We used the same protocol in the sham stimulation group patients as that in the rTMS group, except that the angle of the coil was perpendicular to the skull rather than tangential to it. The patients in both groups received speech therapy for 30 minutes, 5 days a week from a skilled speech therapist. The speech therapist measured the Urimal Test

2015 Annals of rehabilitation medicine Controlled trial quality: uncertain

74. [Clinical observation of peripheral facial palsy treated with electro-acupuncture based on surface electromyography]. (Abstract)

of sickness, according to the detection of sEMG in the patients of two groups, the means ratios of: root mean square (RMS) of musculi buccinators, orbicularis oris, frontalis and nasalis on the healthy and affected sides were recorded and analyzed.The differences of ratio in RMS of musculi buccinators, orbicularis oris, frontalis and nasalis on the healthy and affected sides were significant statistically in comparison between the, 15th day and the 5th day, and between the 35th day and the 15th day

2015 Zhongguo zhen jiu = Chinese acupuncture & moxibustion Controlled trial quality: uncertain

75. Neurotoxins: Current Concepts in Cosmetic Use on the Face and Neck-Lower Face. (Abstract)

of muscles in both the mid and lower face. This article details common techniques using botulinum toxin to treat orbicularis oris, depressor anguli oris, mentalis, and masseter muscles for the temporary correction of unwanted lower face hyperdynamic rhytides and facial contouring. Although we detail our suggested quantity of units per injection site based on onabotulinumtoxinA, all neuromodulators can be used in all of these suggested treatment areas with adjustment of the quantity of units based

2015 Plastic and reconstructive surgery

76. Evaluation of embouchure dysfunction: Experience of 139 patients at a single center. Full Text available with Trip Pro

dysfunction evaluated over a 15-year period.Included in this group are 109 ED patients (20 newly reported and 89 previously published) and 30 NED patients. Non-dystonic embouchure problems included the overuse syndrome, infraorbital neuropathy, and orbicularis oris tears, among others.Based on this experience, the largest series presented to date, we propose a practical guide to help evaluate patients with embouchure dysfunction in the office.4. Laryngoscope, 126:1327-1333, 2016.© 2015 The American

2015 Laryngoscope

77. Microvascular decompression for atypical hemifacial spasm: lessons learned from a retrospective study of 12 cases. Full Text available with Trip Pro

Microvascular decompression for atypical hemifacial spasm: lessons learned from a retrospective study of 12 cases. Typical hemifacial spasm (HFS) commonly initiates from the orbicularis oculi muscle to the orbicularis oris muscle. Atypical HFS (AHFS) is different from typical HFS, in which the spasm of muscular orbicularis oris is the primary presenting symptom. The objective of this study was to analyze the sites of compression and the effectiveness of microvascular decompression (MVD

2015 Journal of Neurosurgery

78. Efficacy of Passive Oral Motor Therapy on Drooling in Children With Multiple Disabilities

each lip). Vibration slowly applied for 10-15 sec each of a) orbicularis oris b) Both sides of larynx from chin to sternal notch c) Under the chin from ear to ear.Quick stretch applied to the masseter muscles (3 times on each side). Stretch pressure applied to vibrated areas, on a) orbicularis oris b) Laryngopharyngeal muscles, both sides. Intra-orally applied light touch to roof of mouth, anteriorly for 3 times. The protocol was given for 4 weeks with treatment sessions given 3 times per week

2015 Clinical Trials

79. Clinical and electrophysiological studies of botulinum toxin type A to treat hemifacial spasm complicated with auricular symptoms. (Abstract)

additionally injected into the PAM prior to injection at other sites. A test of blink reflex was performed and the lateral spread of blink reflex to the orbicularis oris (OO) and PAM, i.e. abnormal muscle response (AMR), was recorded and the peak-peak amplitude of AMR was measured. The patients were followed up clinically and electrophysiologically for at least 4 weeks (29.47 ± 2.53 days).1) Before injection, the latencies of R1, R2, R2' were normal, there was no significant difference between uninjured (...) on the same side, who were referred to our department between July 2009 and January 2010, were enrolled. The diagnosis of idiopathic HFS was made clinically. The patients were largely randomized into two BTX-A treatment groups according to the order of referral. The first group included 33 cases where the injection sites were routinely located at the frontal, orbicularis oculi, zygomaticus and buccinator muscles while the other was the PAM group, which included 30 cases, where 4 units of BTX-A were

2015 International journal of clinical and experimental medicine Controlled trial quality: uncertain

80. Electro-physiological Signs to Prognostic Aphasia Recovery After a Stroke

14 days after a stroke can predict a good recovery from aphasia 6 months of the initial episode. Detailed description: All aphasic stroke patients with ischemic or hemorrhagic damages will be proposed for inclusion. All patients will benefit in the acute phase of an aphasia evaluation, and a clinical evaluation. All patients will have a study of motor evoked potentials (abductor pollicis brevis and orbicularis oris) less than 14 days from stroke. The investigators will evaluate the aphasia 3

2015 Clinical Trials

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